In the figure below, lower sequence list and variable identifier list are displayed on the right screen.
                   

  (1) Setting the contents of lower sequence
      Position the cursor where you want to set lower sequence.
      Select a sequence identifier and use the Select button to set the sequence identifier in the contents. 
     
      Place the cursor on the sequence position where you want to set the contents.
　 Select the sequence identifier you want to set and click the Set button.  
     
      The sequence identifier will be set at the cursor position in the contents.
      In addition, the sequence identifier setting for the subsequence will be set to 1.
      If the same sequence identifier is set in the contents, the setting value will be added.
      There is a way to write the sequence identifier directly in the contents.
      In this case, the setting count will not be reflected.
　 Click the Update button on the right.
       The setting count will be reflected.  

   (2) Cancelling the contents of lower sequence
       Select the sequence identifier you want to delete from lower sequence.
       If there are multiple identical sequence identifiers:
              They will be deleted starting with the first one detected.
       
      Click the Delete button to delete the sequence identifier.  
     
      If you do not want to use the Delete button:
          Delete directly from the contents using the Del or BackSpace key.
　　 Click the Update button on the right to reflect the count in the settings.  

   (3) Content of variable identifier:  
       Select the variable identifier you want to set at the cursor position of the setting content.
　  Click the Select button to set the sequence identifier in the content. 
      
       Move the cursor to the variable identifier position you want to set in the content.
　  Select a variable identifier from the variable identifier list and click the Set button.  
        
      The variable identifier will be set at the cursor position in the content.
　 In addition, 1 will be set to the variable identifier setting.
      If the same variable identifier is set in the content, the setting value will be incremented.
      You can also write the variable identifier directly in the content.
　 In this case, click the Update button on the right to reflect the setting count.  

  (4) Clearing variable identifier content settings  
       Select the variable identifier you want to delete from the variable identifier list.
       If there are multiple identical variable identifiers, they will be deleted starting with the first one detected.
             
       Clicking the Delete button will delete the variable identifier set in the content.
        
       You can also delete it directly from the content using the Del or BackSpace key.
       In this case, click the Update button to reflect the count of settings.